|
Retirement and Postemployment Benefits (Details) (USD $)
In Millions, unless otherwise specified
|
12 Months Ended |
|
May 29, 2011
|
May 30, 2010
|
May 31, 2009
|
| Defined Benefit Plan Assumed Health Care Cost Trend Rates [Abstract] |
 |
 |
 |
| Health care cost trend rate for next year |
8.50% |
9.00% |
 |
| Year that the rate reaches the ultimate trend rate |
2019 |
2019 |
 |
| Rate to which the cost trend rate is assumed to decline (ultimate rate) |
5.20% |
5.20% |
 |
| Defined Benefit Plan Effect Of One Percentage Point Change In Assumed Health Care Cost Trend Rates [Abstract] |
 |
 |
 |
| Effect on the aggregate of the service and interest cost components in fiscal 2012 |
$ 6.2 |
 |
 |
| Effect on the other postretirement accumulated benefit obligation as of May 29, 2011 |
82.4 |
 |
 |
| Effect on the aggregate of the service and interest cost components in fiscal 2012 |
(5.4) |
 |
 |
| Effect on the other postretirement accumulated benefit obligation as of May 29, 2011 |
(73.6) |
 |
 |
| Explanation of significant change in benefit obligation or plan assets not apparent from other required disclosures |
The Patient Protection and Affordable Care Act, as amended by the Health Care and Education Reconciliation Act of 2010 (collectively, the Act) was signed into law in March 2010. The Act codifies health care reforms with staggered effective dates from 2010 to 2018. Estimates of the future impacts of several of the Act’s provisions are incorporated into our postretirement benefit liability including the elimination of lifetime maximums and the imposition of an excise tax on high cost health plans. These changes resulted in a $24.0 million increase in our postretirement benefit liability in fiscal 2010. |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Actual return on assets |
 |
 |
1,100.0 |
| Defined Benefit Plan Change In Benefit Obligation Roll Forward [Abstract] |
 |
 |
 |
| Accumulated Benefit Obligation |
3,991.6 |
3,620.3 |
 |
| Defined Benefit Plan Amounts Recognized In Accumulated Other Comprehensive Loss [Abstract] |
 |
 |
 |
| Net actuarial loss |
1,509.5 |
1,611.0 |
 |
| Prior service costs (credits) |
20.7 |
47.5 |
 |
| Accumulated Other Comprehensive (Income) Loss, Defined Benefit Pension and Other Postretirement Plans, Net of Tax, Total |
1,530.2 |
1,658.5 |
 |
| Defined Benefit Plan Assets Fair Value Abstract |
 |
 |
 |
| Actual Return Attributable To Unrealized Gain Loss On Plan Assets Still Held |
96.8 |
 |
 |
| Defined Benefit Plan Weighted Average Asset Allocations [Abstract] |
 |
 |
 |
| Number Of fiscal years presented |
two |
 |
 |
| Target allocation percentage of assets fixed income funds |
30.00% |
 |
 |
| Target allocation percentage of assets real assets |
10.00% |
 |
 |
| Defined Benefit Plan Estimated Future Benefit Payments [Abstract] |
 |
 |
 |
| 2012 |
5.0 |
 |
 |
| 2013 |
5.5 |
 |
 |
| 2014 |
6.0 |
 |
 |
| 2015 |
6.5 |
 |
 |
| 2016 |
7.1 |
 |
 |
| 2017-2021 |
38.9 |
 |
 |
| Defined Contribution Pension And Other Postretirement Plans Disclosure [Abstract] |
 |
 |
 |
| Description Of Defined Contribution Pension And Other Postretirement Plans |
We matched a percentage of employee contributions to the General Mills Savings Plan with a base match plus a variable year-end match that depended on annual results. |
 |
 |
| Net assets money purchase plan |
18.1 |
16.8 |
 |
| Cost recognized |
41.8 |
64.5 |
59.5 |
| ESOP number of allocated shares |
11.2 |
11.9 |
 |
| ESOP compensation expense |
0 |
53.7 |
50.6 |
| Common stock held by ESOP and company stock fund |
648.1 |
610.3 |
 |
|
Defined Benefit Pension Plans [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Fair value at beginning of year |
3,529.8 |
3,157.8 |
 |
| Actual return on assets |
688.9 |
535.9 |
 |
| Employer contributions |
220.7 |
17.1 |
 |
| Plan participant contributions |
4.1 |
3.5 |
 |
| Acquisitions and divestitures |
0 |
0 |
 |
| Benefits Payments |
(188.2) |
(182.6) |
 |
| Foreign currency |
8.7 |
(1.9) |
 |
| Fair value at end of year |
4,264.0 |
3,529.8 |
3,157.8 |
| Defined Benefit Plan Change In Benefit Obligation Roll Forward [Abstract] |
 |
 |
 |
| Benefit obligation at beginning of year |
4,030.0 |
3,167.3 |
 |
| Interest cost |
230.9 |
230.3 |
 |
| Plan amendment |
0 |
25.8 |
 |
| Curtailment/other |
0 |
0 |
 |
| Medicare Part D reimbursements |
0 |
0 |
 |
| Actuarial loss (gain) |
271.2 |
716.4 |
 |
| Benefits payments |
(188.2) |
(182.6) |
 |
| Foreign currency |
9.0 |
(1.6) |
 |
| Projected benefit obligation at end of year |
4,458.4 |
4,030.0 |
3,167.3 |
| Plan assets less than benefit obligation as of fiscal year end |
(194.4) |
(500.2) |
 |
| Defined Benefit Plan Amounts Recognized In Accumulated Other Comprehensive Loss [Abstract] |
 |
 |
 |
| Net actuarial loss |
1,313.9 |
1,369.9 |
 |
| Prior service costs (credits) |
35.8 |
41.3 |
 |
| Accumulated Other Comprehensive (Income) Loss, Defined Benefit Pension and Other Postretirement Plans, Net of Tax, Total |
1,349.7 |
1,411.2 |
 |
| Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets [Abstract] |
 |
 |
 |
| Projected benefit obligation |
335.1 |
299.6 |
 |
| Accumulated benefit obligation |
280.6 |
252.5 |
 |
| Plan assets at fair value |
9.0 |
17.3 |
 |
| Defined Benefit Plan Net Periodic Benefit Cost [Abstract] |
 |
 |
 |
| Service cost |
101.4 |
70.9 |
76.5 |
| Interest Cost |
230.9 |
230.3 |
215.4 |
| Expected return on plan assets |
(408.5) |
(400.1) |
(385.8) |
| Amortization of losses |
81.4 |
8.4 |
7.8 |
| Amortization of prior service costs (credits) |
9.0 |
6.9 |
7.4 |
| Other Adjustments |
0 |
0 |
0 |
| Net (income) expense |
14.2 |
(83.6) |
(78.7) |
| Defined Benefit Plan Amounts That Will Be Amortized From Accumulated Other Comprehensive Income Loss In Next Fiscal Year [Abstract] |
 |
 |
 |
| Amortization of losses |
108.2 |
 |
 |
| Amortization of prior service costs (credits) |
8.6 |
 |
 |
| Defined Benefit Plan Weighted Average Assumptions Used In Calculating Benefit Obligation [Abstract] |
 |
 |
 |
| Discount rate |
5.45% |
5.85% |
 |
| Rate of salary increases |
4.92% |
4.93% |
 |
| Defined Benefit Plan Weighted Average Assumptions Used In Calculating Net Periodic Benefit Cost Abstract |
 |
 |
 |
| Discount rate |
5.85% |
7.49% |
6.88% |
| Rate of salary increases |
4.93% |
4.92% |
4.93% |
| Expected long-term rate of return on plan assets. |
9.53% |
9.55% |
9.55% |
| Defined Benefit Plan Weighted Average Asset Allocations [Abstract] |
 |
 |
 |
| Fixed income |
23.90% |
22.40% |
 |
| Real assets |
13.60% |
13.20% |
 |
| Defined Benefit Plan Estimated Future Benefit Payments [Abstract] |
 |
 |
 |
| 2012 |
204.8 |
 |
 |
| 2013 |
213.8 |
 |
 |
| 2014 |
223.3 |
 |
 |
| 2015 |
233.2 |
 |
 |
| 2016 |
243.8 |
 |
 |
| 2017-2021 |
1,402.3 |
 |
 |
|
Defined Benefit Pension Plans [Member] | Level 1 [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Fair value at end of year |
2,116.1 |
1,675.8 |
 |
|
Defined Benefit Pension Plans [Member] | Level 1 [Member] | Equity [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Fair value at end of year |
1,052.5 |
744.5 |
 |
|
Defined Benefit Pension Plans [Member] | Level 1 [Member] | Fixed income [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Fair value at end of year |
794.7 |
700.0 |
 |
|
Defined Benefit Pension Plans [Member] | Level 1 [Member] | Real asset investments [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Fair value at end of year |
113.0 |
72.4 |
 |
|
Defined Benefit Pension Plans [Member] | Level 1 [Member] | Other investments [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Fair value at end of year |
0 |
0 |
 |
|
Defined Benefit Pension Plans [Member] | Level 1 [Member] | Cash and accruals [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Fair value at end of year |
155.9 |
158.9 |
 |
|
Defined Benefit Pension Plans [Member] | Level 2 [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Fair value at end of year |
1,222.0 |
1,038.3 |
 |
|
Defined Benefit Pension Plans [Member] | Level 2 [Member] | Equity [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Fair value at end of year |
900.2 |
716.6 |
 |
|
Defined Benefit Pension Plans [Member] | Level 2 [Member] | Fixed income [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Fair value at end of year |
174.4 |
206.0 |
 |
|
Defined Benefit Pension Plans [Member] | Level 2 [Member] | Real asset investments [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Fair value at end of year |
95.2 |
75.8 |
 |
|
Defined Benefit Pension Plans [Member] | Level 2 [Member] | Other investments [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Fair value at end of year |
52.2 |
39.9 |
 |
|
Defined Benefit Pension Plans [Member] | Level 2 [Member] | Cash and accruals [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Fair value at end of year |
0 |
0 |
 |
|
Defined Benefit Pension Plans [Member] | Level 3 [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Fair value at beginning of year |
815.7 |
703.8 |
 |
| Fair value at end of year |
925.9 |
815.7 |
 |
| Defined Benefit Plan Assets Fair Value Abstract |
 |
 |
 |
| Transfers In/(Out) |
1.5 |
0 |
 |
| Purchases, Sales Issuances, and Settlements (Net) |
(36.4) |
40.5 |
 |
| Actual return on plan assets still held |
145.1 |
71.4 |
 |
|
Defined Benefit Pension Plans [Member] | Level 3 [Member] | Equity [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Fair value at beginning of year |
512.8 |
423.9 |
 |
| Fair value at end of year |
568.5 |
512.8 |
 |
| Defined Benefit Plan Assets Fair Value Abstract |
 |
 |
 |
| Transfers In/(Out) |
2.4 |
0 |
 |
| Purchases, Sales Issuances, and Settlements (Net) |
(48.1) |
17.0 |
 |
| Actual return on plan assets still held |
101.4 |
71.9 |
 |
|
Defined Benefit Pension Plans [Member] | Level 3 [Member] | Fixed income [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Fair value at beginning of year |
3.9 |
4.2 |
 |
| Fair value at end of year |
0.2 |
3.9 |
 |
| Defined Benefit Plan Assets Fair Value Abstract |
 |
 |
 |
| Transfers In/(Out) |
(0.9) |
0 |
 |
| Purchases, Sales Issuances, and Settlements (Net) |
(4.3) |
(1.2) |
 |
| Actual return on plan assets still held |
1.5 |
0.9 |
 |
|
Defined Benefit Pension Plans [Member] | Level 3 [Member] | Real asset investments [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Fair value at beginning of year |
298.7 |
275.2 |
 |
| Fair value at end of year |
356.9 |
298.7 |
 |
| Defined Benefit Plan Assets Fair Value Abstract |
 |
 |
 |
| Transfers In/(Out) |
0 |
0 |
 |
| Purchases, Sales Issuances, and Settlements (Net) |
16.0 |
25.0 |
 |
| Actual return on plan assets still held |
42.2 |
(1.5) |
 |
|
Defined Benefit Pension Plans [Member] | Level 3 [Member] | Other investments [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Fair value at beginning of year |
0.3 |
0.5 |
 |
| Fair value at end of year |
0.3 |
0.3 |
 |
| Defined Benefit Plan Assets Fair Value Abstract |
 |
 |
 |
| Transfers In/(Out) |
0 |
0 |
 |
| Purchases, Sales Issuances, and Settlements (Net) |
0 |
(0.3) |
 |
| Actual return on plan assets still held |
0 |
0.1 |
 |
|
Defined Benefit Pension Plans [Member] | Level 3 [Member] | Cash and accruals [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Fair value at end of year |
0 |
0 |
 |
|
Defined Benefit Pension Plans [Member] | Equity [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Fair value at end of year |
2,521.2 |
1,973.9 |
 |
|
Defined Benefit Pension Plans [Member] | Fixed income [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Fair value at end of year |
969.3 |
909.9 |
 |
|
Defined Benefit Pension Plans [Member] | Real asset investments [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Fair value at end of year |
565.1 |
446.9 |
 |
|
Defined Benefit Pension Plans [Member] | Other investments [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Fair value at end of year |
52.5 |
40.2 |
 |
|
Defined Benefit Pension Plans [Member] | Cash and accruals [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Fair value at end of year |
155.9 |
158.9 |
 |
|
Defined Benefit Pension Plans [Member] | United States Equity Securities
|
 |
 |
 |
| Defined Benefit Plan Weighted Average Asset Allocations [Abstract] |
 |
 |
 |
| Defined Benefit Plan Equity Securities |
30.10% |
32.60% |
 |
|
Defined Benefit Pension Plans [Member] | International Equity Securities
|
 |
 |
 |
| Defined Benefit Plan Weighted Average Asset Allocations [Abstract] |
 |
 |
 |
| Defined Benefit Plan Equity Securities |
18.90% |
17.10% |
 |
|
Defined Benefit Pension Plans [Member] | Private Equities
|
 |
 |
 |
| Defined Benefit Plan Weighted Average Asset Allocations [Abstract] |
 |
 |
 |
| Defined Benefit Plan Equity Securities |
13.50% |
14.70% |
 |
|
United States Pension Plans Of US Entity Defined Benefit [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Employer contributions |
200.0 |
 |
 |
|
Other Postretirement Benefit Plans [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Fair value at beginning of year |
284.3 |
235.6 |
 |
| Actual return on assets |
60.7 |
41.0 |
 |
| Employer contributions |
0.1 |
0.1 |
 |
| Plan participant contributions |
11.8 |
11.3 |
 |
| Acquisitions and divestitures |
0 |
0 |
 |
| Benefits Payments |
(3.1) |
(3.7) |
 |
| Foreign currency |
0 |
0 |
 |
| Fair value at end of year |
353.8 |
284.3 |
235.6 |
| Defined Benefit Plan Change In Benefit Obligation Roll Forward [Abstract] |
 |
 |
 |
| Benefit obligation at beginning of year |
1,060.6 |
852.0 |
 |
| Interest cost |
60.1 |
61.6 |
 |
| Plan amendment |
(35.3) |
7.5 |
 |
| Curtailment/other |
0 |
0 |
 |
| Medicare Part D reimbursements |
4.5 |
4.7 |
 |
| Actuarial loss (gain) |
2.0 |
168.1 |
 |
| Benefits payments |
(56.9) |
(57.5) |
 |
| Foreign currency |
0.3 |
0 |
 |
| Projected benefit obligation at end of year |
1,065.8 |
1,060.6 |
852.0 |
| Plan assets less than benefit obligation as of fiscal year end |
(712.0) |
(776.3) |
 |
| Defined Benefit Plan Amounts Recognized In Accumulated Other Comprehensive Loss [Abstract] |
 |
 |
 |
| Net actuarial loss |
181.3 |
225.2 |
 |
| Prior service costs (credits) |
(20.7) |
(1.0) |
 |
| Accumulated Other Comprehensive (Income) Loss, Defined Benefit Pension and Other Postretirement Plans, Net of Tax, Total |
160.6 |
224.2 |
 |
| Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets [Abstract] |
 |
 |
 |
| Projected benefit obligation |
0 |
0 |
 |
| Accumulated benefit obligation |
1,065.8 |
1,060.6 |
 |
| Plan assets at fair value |
353.8 |
284.3 |
 |
| Defined Benefit Plan Net Periodic Benefit Cost [Abstract] |
 |
 |
 |
| Service cost |
18.7 |
12.9 |
14.2 |
| Interest Cost |
60.1 |
61.6 |
61.2 |
| Expected return on plan assets |
(33.2) |
(29.2) |
(30.0) |
| Amortization of losses |
14.4 |
2.0 |
7.2 |
| Amortization of prior service costs (credits) |
(0.6) |
(1.6) |
(1.4) |
| Other Adjustments |
0 |
0 |
0 |
| Net (income) expense |
59.4 |
45.7 |
51.2 |
| Defined Benefit Plan Amounts That Will Be Amortized From Accumulated Other Comprehensive Income Loss In Next Fiscal Year [Abstract] |
 |
 |
 |
| Amortization of losses |
14.4 |
 |
 |
| Amortization of prior service costs (credits) |
(3.4) |
 |
 |
| Defined Benefit Plan Weighted Average Assumptions Used In Calculating Benefit Obligation [Abstract] |
 |
 |
 |
| Discount rate |
5.35% |
5.80% |
 |
| Rate of salary increases |
0.00% |
0.00% |
 |
| Defined Benefit Plan Weighted Average Assumptions Used In Calculating Net Periodic Benefit Cost Abstract |
 |
 |
 |
| Discount rate |
5.80% |
7.45% |
6.90% |
| Rate of salary increases |
0.00% |
0.00% |
0.00% |
| Expected long-term rate of return on plan assets. |
9.33% |
9.33% |
9.35% |
| Defined Benefit Plan Weighted Average Asset Allocations [Abstract] |
 |
 |
 |
| Fixed income |
30.10% |
28.10% |
 |
| Real assets |
6.30% |
6.40% |
 |
| Defined Benefit Plan Estimated Future Benefit Payments [Abstract] |
 |
 |
 |
| 2012 |
58.6 |
 |
 |
| 2013 |
62.6 |
 |
 |
| 2014 |
64.6 |
 |
 |
| 2015 |
66.6 |
 |
 |
| 2016 |
39.6 |
 |
 |
| 2017-2021 |
387.7 |
 |
 |
|
Other Postretirement Benefit Plans [Member] | Level 1 [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Fair value at end of year |
35.7 |
39.7 |
 |
|
Other Postretirement Benefit Plans [Member] | Level 1 [Member] | Equity [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Fair value at end of year |
13.5 |
10.1 |
 |
|
Other Postretirement Benefit Plans [Member] | Level 1 [Member] | Fixed income [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Fair value at end of year |
1.8 |
1.1 |
 |
|
Other Postretirement Benefit Plans [Member] | Level 1 [Member] | Real asset investments [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Fair value at end of year |
0 |
0.1 |
 |
|
Other Postretirement Benefit Plans [Member] | Level 1 [Member] | Other investments [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Fair value at end of year |
0 |
0 |
 |
|
Other Postretirement Benefit Plans [Member] | Level 1 [Member] | Cash and accruals [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Fair value at end of year |
20.4 |
28.4 |
 |
|
Other Postretirement Benefit Plans [Member] | Level 2 [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Fair value at end of year |
278.0 |
202.6 |
 |
|
Other Postretirement Benefit Plans [Member] | Level 2 [Member] | Equity [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Fair value at end of year |
131.0 |
81.4 |
 |
|
Other Postretirement Benefit Plans [Member] | Level 2 [Member] | Fixed income [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Fair value at end of year |
55.9 |
46.1 |
 |
|
Other Postretirement Benefit Plans [Member] | Level 2 [Member] | Real asset investments [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Fair value at end of year |
7.2 |
3.7 |
 |
|
Other Postretirement Benefit Plans [Member] | Level 2 [Member] | Other investments [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Fair value at end of year |
83.9 |
71.4 |
 |
|
Other Postretirement Benefit Plans [Member] | Level 2 [Member] | Cash and accruals [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Fair value at end of year |
0 |
0 |
 |
|
Other Postretirement Benefit Plans [Member] | Level 3 [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Fair value at beginning of year |
42.0 |
42.3 |
 |
| Fair value at end of year |
40.1 |
42.0 |
 |
| Defined Benefit Plan Assets Fair Value Abstract |
 |
 |
 |
| Transfers In/(Out) |
0 |
0 |
 |
| Purchases, Sales Issuances, and Settlements (Net) |
(7.4) |
(2.1) |
 |
| Actual return on plan assets still held |
5.5 |
1.8 |
 |
|
Other Postretirement Benefit Plans [Member] | Level 3 [Member] | Equity [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Fair value at beginning of year |
25.7 |
23.8 |
 |
| Fair value at end of year |
26.3 |
25.7 |
 |
| Defined Benefit Plan Assets Fair Value Abstract |
 |
 |
 |
| Transfers In/(Out) |
0 |
0 |
 |
| Purchases, Sales Issuances, and Settlements (Net) |
(3.7) |
(1.5) |
 |
| Actual return on plan assets still held |
4.3 |
3.4 |
 |
|
Other Postretirement Benefit Plans [Member] | Level 3 [Member] | Fixed income [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Fair value at beginning of year |
1.7 |
1.5 |
 |
| Fair value at end of year |
0.2 |
1.7 |
 |
| Defined Benefit Plan Assets Fair Value Abstract |
 |
 |
 |
| Transfers In/(Out) |
0 |
0 |
 |
| Purchases, Sales Issuances, and Settlements (Net) |
(1.5) |
0 |
 |
| Actual return on plan assets still held |
0 |
0.2 |
 |
|
Other Postretirement Benefit Plans [Member] | Level 3 [Member] | Real asset investments [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Fair value at beginning of year |
14.6 |
17.0 |
 |
| Fair value at end of year |
13.6 |
14.6 |
 |
| Defined Benefit Plan Assets Fair Value Abstract |
 |
 |
 |
| Transfers In/(Out) |
0 |
0 |
 |
| Purchases, Sales Issuances, and Settlements (Net) |
(2.2) |
(0.6) |
 |
| Actual return on plan assets still held |
1.2 |
(1.8) |
 |
|
Other Postretirement Benefit Plans [Member] | Level 3 [Member] | Other investments [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Fair value at end of year |
0 |
0 |
 |
|
Other Postretirement Benefit Plans [Member] | Level 3 [Member] | Cash and accruals [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Fair value at end of year |
0 |
0 |
 |
|
Other Postretirement Benefit Plans [Member] | Equity [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Fair value at end of year |
170.8 |
117.2 |
 |
|
Other Postretirement Benefit Plans [Member] | Fixed income [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Fair value at end of year |
57.9 |
48.9 |
 |
|
Other Postretirement Benefit Plans [Member] | Real asset investments [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Fair value at end of year |
20.8 |
18.4 |
 |
|
Other Postretirement Benefit Plans [Member] | Other investments [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Fair value at end of year |
83.9 |
71.4 |
 |
|
Other Postretirement Benefit Plans [Member] | Cash and accruals [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Fair value at end of year |
20.4 |
28.4 |
 |
|
Other Postretirement Benefit Plans [Member] | United States Equity Securities
|
 |
 |
 |
| Defined Benefit Plan Weighted Average Asset Allocations [Abstract] |
 |
 |
 |
| Defined Benefit Plan Equity Securities |
37.60% |
37.30% |
 |
|
Other Postretirement Benefit Plans [Member] | International Equity Securities
|
 |
 |
 |
| Defined Benefit Plan Weighted Average Asset Allocations [Abstract] |
 |
 |
 |
| Defined Benefit Plan Equity Securities |
18.70% |
18.30% |
 |
|
Other Postretirement Benefit Plans [Member] | Private Equities
|
 |
 |
 |
| Defined Benefit Plan Weighted Average Asset Allocations [Abstract] |
 |
 |
 |
| Defined Benefit Plan Equity Securities |
7.30% |
9.90% |
 |
|
Postemployment Benefit Plans [Member]
|
 |
 |
 |
| Defined Benefit Plan Change In Fair Value Of Plan Assets Roll Forward [Abstract] |
 |
 |
 |
| Plan participant contributions |
0 |
0 |
 |
| Defined Benefit Plan Change In Benefit Obligation Roll Forward [Abstract] |
 |
 |
 |
| Benefit obligation at beginning of year |
130.3 |
112.5 |
 |
| Interest cost |
5.1 |
5.6 |
 |
| Plan amendment |
0 |
0 |
 |
| Curtailment/other |
4.2 |
10.6 |
 |
| Medicare Part D reimbursements |
0 |
0 |
 |
| Actuarial loss (gain) |
(0.5) |
11.8 |
 |
| Benefits payments |
(16.1) |
(17.6) |
 |
| Foreign currency |
0.3 |
0.2 |
 |
| Projected benefit obligation at end of year |
131.3 |
130.3 |
112.5 |
| Plan assets less than benefit obligation as of fiscal year end |
(131.3) |
(130.3) |
 |
| Defined Benefit Plan Amounts Recognized In Accumulated Other Comprehensive Loss [Abstract] |
 |
 |
 |
| Net actuarial loss |
14.3 |
15.9 |
 |
| Prior service costs (credits) |
5.6 |
7.2 |
 |
| Accumulated Other Comprehensive (Income) Loss, Defined Benefit Pension and Other Postretirement Plans, Net of Tax, Total |
19.9 |
23.1 |
 |
| Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets [Abstract] |
 |
 |
 |
| Projected benefit obligation |
0 |
0 |
 |
| Accumulated benefit obligation |
131.3 |
130.3 |
 |
| Plan assets at fair value |
0 |
0 |
 |
| Defined Benefit Plan Net Periodic Benefit Cost [Abstract] |
 |
 |
 |
| Service cost |
8.0 |
7.2 |
6.5 |
| Interest Cost |
5.1 |
5.7 |
4.9 |
| Expected return on plan assets |
0 |
0 |
0 |
| Amortization of losses |
2.1 |
1.0 |
1.0 |
| Amortization of prior service costs (credits) |
2.4 |
2.4 |
2.2 |
| Other Adjustments |
4.2 |
10.6 |
8.4 |
| Net (income) expense |
21.8 |
26.9 |
23.0 |
| Defined Benefit Plan Amounts That Will Be Amortized From Accumulated Other Comprehensive Income Loss In Next Fiscal Year [Abstract] |
 |
 |
 |
| Amortization of losses |
1.8 |
 |
 |
| Amortization of prior service costs (credits) |
2.1 |
 |
 |
| Defined Benefit Plan Weighted Average Assumptions Used In Calculating Benefit Obligation [Abstract] |
 |
 |
 |
| Discount rate |
4.77% |
5.12% |
 |
| Rate of salary increases |
4.92% |
4.93% |
 |
| Defined Benefit Plan Weighted Average Assumptions Used In Calculating Net Periodic Benefit Cost Abstract |
 |
 |
 |
| Discount rate |
5.12% |
7.06% |
6.64% |
| Rate of salary increases |
4.93% |
4.93% |
4.93% |
| Expected long-term rate of return on plan assets. |
0.00% |
0.00% |
0.00% |
| Defined Benefit Plan Estimated Future Benefit Payments [Abstract] |
 |
 |
 |
| 2012 |
18.4 |
 |
 |
| 2013 |
17.3 |
 |
 |
| 2014 |
16.3 |
 |
 |
| 2015 |
15.1 |
 |
 |
| 2016 |
14.4 |
 |
 |
| 2017-2021 |
$ 66.6 |
 |
 |
|
United States Equity Securities
|
 |
 |
 |
| Defined Benefit Plan Weighted Average Asset Allocations [Abstract] |
 |
 |
 |
| Target Allocation Percentage Of Assets Equity Securities |
30.00% |
 |
 |
|
International Equity Securities
|
 |
 |
 |
| Defined Benefit Plan Weighted Average Asset Allocations [Abstract] |
 |
 |
 |
| Target Allocation Percentage Of Assets Equity Securities |
20.00% |
 |
 |
|
Private Equities
|
 |
 |
 |
| Defined Benefit Plan Weighted Average Asset Allocations [Abstract] |
 |
 |
 |
| Target Allocation Percentage Of Assets Equity Securities |
10.00% |
 |
 |